How do I calculate shipping costs?

Navigate to the USPS Postage Price Calculator page. Enter the details of your letter or package. Select the shipment type. Compare shipping options. Add Extra Services. Hit “Continue” for your result. Pay for shipping and print postage for your shipment.

How do I know how much shipping will cost USPS?

USPS shipping costs are calculated based on weight and distance traveled. Packages weighing less than one pound start at $2.74 via USPS First Class Package Service. If your package weighs one pound, you’ll want to use USPS Priority Mail which starts at $7.02 with Shippo’s special Cubic pricing.

Is shipping cost by weight or size?

All major carriers use a pricing technique called dimensional weight (also called DIM weight) to calculate shipping rates. Dimensional weight takes into account the size of a package to determine the shipping cost.